Build context in constructor

[airbundle] / DependencyInjection / RapsysAirExtension.php

diff --git a/DependencyInjection/RapsysAirExtension.php b/DependencyInjection/RapsysAirExtension.php
index 8866181c7dea013165055b78dd14d7aa7a9b3721..76729ae136f9738b4b3d65aecba86785b363a266 100644 (file)
--- a/DependencyInjection/RapsysAirExtension.php
+++ b/DependencyInjection/RapsysAirExtension.php
@@ -3,44 +3,87 @@
 namespace Rapsys\AirBundle\DependencyInjection;
 
 use Symfony\Component\DependencyInjection\ContainerBuilder;
-use Symfony\Component\Config\FileLocator;
-use Symfony\Component\HttpKernel\DependencyInjection\Extension;
-use Symfony\Component\DependencyInjection\Loader;
+use Symfony\Component\DependencyInjection\Extension\Extension;
+use Symfony\Component\DependencyInjection\Extension\PrependExtensionInterface;
+use Symfony\Component\Translation\Loader\ArrayLoader;
 
 /**
  * This is the class that loads and manages your bundle configuration.
  *
  * @link http://symfony.com/doc/current/cookbook/bundles/extension.html
  */
-class RapsysAirExtension extends Extension {
+class RapsysAirExtension extends Extension implements PrependExtensionInterface {
        /**
+        * Prepend the configuration
+        *
+        * @desc Preload the configuration to allow sourcing as parameters
         * {@inheritdoc}
         */
-       public function load(array $configs, ContainerBuilder $container) {
-               $loader = new Loader\YamlFileLoader($container, new FileLocator('config/packages'));
-               $loader->load($this->getAlias().'.yaml');
+       public function prepend(ContainerBuilder $container) {
+               //Process the configuration
+               $configs = $container->getExtensionConfig($this->getAlias());
+
+               //Load configuration
+               $configuration = $this->getConfiguration($configs, $container);
 
-               $configuration = new Configuration();
+               //Process the configuration to get merged config
                $config = $this->processConfiguration($configuration, $configs);
 
-               //Set default config in parameter
-               if (!$container->hasParameter($alias = $this->getAlias())) {
-                       $container->setParameter($alias, $config[$alias]);
-               } else {
-                       $config[$alias] = $container->getParameter($alias);
+               //Detect when no user configuration is provided
+               if ($configs === [[]]) {
+                       //Prepend default config
+                       $container->prependExtensionConfig($this->getAlias(), $config);
                }
 
-               //Transform the one level tree in flat parameters
-               foreach($config[$alias] as $k => $v) {
-                       //Set is as parameters
-                       $container->setParameter($alias.'.'.$k, $v);
+               //Save configuration in parameters
+               $container->setParameter($this->getAlias(), $config);
+
+               //Store flattened array in parameters
+               foreach($this->flatten($config, $this->getAlias()) as $k => $v) {
+                       $container->setParameter($k, $v);
                }
        }
 
+       /**
+        * {@inheritdoc}
+        */
+       public function load(array $configs, ContainerBuilder $container) {
+       }
+
        /**
         * {@inheritdoc}
         */
        public function getAlias() {
                return 'rapsys_air';
        }
+
+       /**
+        * The function that parses the array to flatten it into a one level depth array
+        *
+        * @param $array        The config values array
+        * @param $path         The current key path
+        * @param $depth        The maxmium depth
+        * @param $sep          The separator string
+        */
+       protected function flatten($array, $path = '', $depth = 10, $sep = '.') {
+               //Init res
+               $res = array();
+
+               //Pass through non hashed or empty array
+               if ($depth && is_array($array) && ($array === [] || array_keys($array) === range(0, count($array) - 1))) {
+                       $res[$path] = $array;
+               //Flatten hashed array
+               } elseif ($depth && is_array($array)) {
+                       foreach($array as $k => $v) {
+                               $sub = $path ? $path.$sep.$k:$k;
+                               $res += $this->flatten($v, $sub, $depth - 1, $sep);
+                       }
+               //Pass scalar value directly
+               } else {
+                       $res[$path] = $array;
+               }
+
+               //Return result
+               return $res;
+       }
 }